Absorbent product

Inventor: Ikuo Akiyama (Mima-gun, JP)

Assignee: LIVEDO CORPORATION

A61F13/535 A61F13/534 A61F13/536 A61F13/49473 A61F13/5323 A61F13/53717 A61F13/53747

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Quick Facts

Patent No.: US 9,056,034
App. No.: 13/203,089
Granted: Jun 16, 2015
Kind: B2

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Abstract

In an absorbent part of an absorbent product, super absorbent materials located between two sheets in an absorbent area swell by absorption of moisture of excrement, and spaces extending in a longitudinal direction from an opening, which is formed at a portion of upper absorbent layer facing the crotch region of a wearer, are formed between a non-absorbent area where the super absorbent materials do not exist and the upper absorbent layer and between the non-absorbent area and a lower absorbent layer. In the absorbent product, through the spaces, moisture of excrement in the second excretion and later can be quickly diffused over a wide area along the longitudinal direction of the absorbent part, and the moisture of excrement can be absorbed in a wide area of the absorbent part. As a result, it is possible to maintain high absorbing ability in multiple excretions in the absorbent product.

Claims (36)

1. An absorbent product for receiving excrement from a wearer, comprising:

a liquid-pervious top sheet;

a water-repellent or liquid-impervious back sheet; and

an absorbent part located between said top sheet and said back sheet, wherein said absorbent part comprises

an upper absorbent layer having a fiber assembly layer in which an opening is formed at a position facing a crotch region of a wearer, and

an absorbent sheet which is located between said upper absorbent layer and said back sheet, said top sheet being coated on said absorbent sheet such that said top sheet together with said absorbent sheet directly covers said opening at the lower side of said opening so as to close said opening,

wherein said absorbent sheet comprises

two sheets, and

super absorbent materials which are located between said two sheets and which are fixed to at least one of said two sheets,

and wherein a low density area lies between said two sheets and spreads continuously from positions under said opening along a longitudinal direction of said absorbent part in the form of lines or mesh, and a density of said super absorbent materials in said low density area is lower than that in another area of said absorbent sheet or said super absorbent materials do not exist in said low density area.

2. The absorbent product according to claim 1 , wherein

said super absorbent materials do not exist in said low density area, and said two sheets are bonded to each other in said low density area.

3. The absorbent product according to claim 2 , wherein

said two sheets are bonded to each other by heat bonding.

4. The absorbent product according to claim 3 , wherein